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參數(shù)資料
| 型號： | XR-T7296IW |
| 廠商： | EXAR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | DS3/STS-1, E3 Integrated Line Transmitter |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PDSO28 |
| 封裝： | 0.300 INCH, SOJ-28 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 187K |
| 代理商： | XR-T7296IW |
XR-T7296
4
Rev. 2.01
PIN DESCRIPTION (CONT’D)
Pin #
Symbol
Type
Description
13
BPV
O
Bipolar Violation Output
. This pin goes high for one bit period when a bipolar violation not
corresponding to the appropriate coding rule or coding error is detected in the RPDATA/
RNDATA signals.
14
RNRZ
O
Receive Binary Data.
Signal on this pin is the ORed-output of RPOS and RNEG.
Receive Negative Data.
This signal is the decoded version of RNDATA.
1
Receive Positive Data
. This signal is the decoded version of RPDATA.
1
15
RNEG
O
16
RPOS
O
17
RCLKO
O
Receive Clock Output
. This signal is the inverted version of RCLK.
18
DMO
O
Driver Monitor Output.
If no transmitted AMI signal is present on MTIP and MRING for
128
32 TCLK clock periods. DMO goes high until the next AMI signal is detected.
Monitor Ring Input
. AMI signal from TRING can be connected to this pin for line driver fail-
ure detection. Internally pulled high.
Monitor Tip Input
. AMI signal from TTIP can be connected to this pin for line driver failure
detection. Internally pulled high.
Analog Ground
for analog circuitry.
19
MRING
I
20
MTIP
I
21
GNDA
22
TRING
O
Transmit Ring Output
. Transmit AMI signal is driven to the line via a 1:1 transformer from
this pin.
Transmit Tip Output.
Transmit AMI signal is driven to the line via a 1:1 transformer from this
pin.
5V Analog Supply (
5%)
for analog circuitry.
23
TTIP
O
24
V
DD
A
TXLEV
-
25
I
Transmit Level Select.
The output signal amplitude at TTIP and TRING can be varied by
setting this pin high or low. When the cable length is greater than 225 ft. TXLEV should be set
high. When it is below 225 ft, it should be set low. This pin is active only with pin 4 set to
DS3 or STS-1 mode.
26
ICT
I
In-circuit Testing.
A low at this pin causes all digital and analog outputs to go into a high-im-
pedance state to allow for in-circuit testing. Internally pulled high.
Receive Positive Data
. NRZ input data to the decoder block. Sampled on the falling edge of
RCLK.
Receive Negative Data
. NRZ input data of the decoder block. Sampled on
falling edge of RCLK.
27
RPDATA
I
28
RNDATA
I
Note
1
If a bipolar violation occurs, RPOS and RNEG can correspond to the decoded versions of RNDATA and RPDATA respectively. If
DECODIS is high, RPOS and RNEG always track RPDATA and RNDATA respectively.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT7296IW-F | 功能描述:外圍驅(qū)動器與原件 - PCI -.5V--6.5V temp -45 to 85C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT7296IW-F | 制造商:Exar Corporation 功能描述:T3/E3 LIU IC |
| XRT7296IWTR | 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT7296IWTR-F | 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT7298 | 制造商:EXAR 制造商全稱:EXAR 功能描述:DS3/STS-1, E3 INTEGRATED LINE TRANSMITTER |
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